What does UL mean on locks?
What are UL Listed Locks? UL is an acronym for Underwriters Laboratories Inc. which is an independent product safety certification organizations. UL develops standards by which they test door hardware to verify that it meets certain safety requirements during use, or in the event of a fire or other circumstances.
What is the standard size of a door knob?
2 3/8 inches
To have the door function properly, you will have to make sure that the door knob you buy is the correct size for your door. The standard size for a door knob diameter is either 2 3/8 inches or 2 3/4 inches and these knobs will usually fit doors that are anywhere between 1 3/8 inches to 1 3/4 inches thick.
What does UL function mean on door knob?
UL Listing (aka Underwriters Laboratories) “is an independent product safety certification organization. Established in 1894, the company has its headquarters in Northbrook, Illinois.”” For door hardware, UL Listing is basically saying that it’s been tested and meets safety requirements in case of fire.
Why is UL certification important?
UL Certification allows a company to innovate its safety standards and align themselves with industry-wide best practices. Being UL certified illustrates a businesses’ dedication to consumer safety, as well as the quality of their products.
What is UL listed safe?
What Are UL-Listed Devices? When a product is UL-listed, it means that the global safety certification company UL has confirmed that the the product is safe for use. Products that should definitely be UL-listed before installation in your home include fixed appliances and electrical equipment.
How do you determine door knob size?
Measure the bore hole. You’ll need to know the bore hole’s diameter to get the right sized knob. Measure across the circular hole at its widest point, i.e. start at the bottom of the hole and pull the tape until you hit the top of the hole. There’s your diameter.
How do you measure for a replacement door knob?
Measure from the edge of the door to the centre of the door knob or handle. The industry standards are usually either 44mm / 57mm / 82mm / 107mm / 130mm. Ideally you will try and choose the backset measurement that sites the door handle in the middle of the door stile.
What is the difference between mortise and tubular?
A tubular lock has its latch bolt and dead bolt in two separate holes. In a mortise lock, both bolts are encased in a steel box that fits in one hole.
What is ANSI grade1?
ANSI Grade 1- This is a heavy-duty commercial security lock. It is specifically designed for high traffic and superior security. As the strongest grade, it can be used for residential applications too, but it is predominantly found in commercial and industrial applications.